code: def tearDownClass(cls):
      cls.arrow_server.shutdown()
  
file_path: TabPy/tests/integration/test_arrow_server.py
imports: import unittest
  import threading
  import _thread
  import pyarrow
  import os
  import pyarrow.csv
  from tabpy.tabpy_server.app.arrow_server import FlightServer
  import tabpy.tabpy_server.app.arrow_server
label_desc: Use image node_id 2 for calling the TestArrowServer obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types